The policy I've adopted is:
1. All new FI(R)s receive a free check-out from either myself or another nominated UK/FE(PPL).
2. If they haven't flown the 'other' variant of the aeroplane which was used for the check-out, then they get a free hour's solo GH on that as well. This follows the CAA policy following the Cherokee accident mentioned earlier.
FI(R)s then instruct whatever comes their way. We do a very, very small number of 'trial flights' - probably not even 1 per month - so the novice FI(R)s soon find their feet and are supervised as lightly as possible in order to develop their own style and decision-making experience within standardisation guidelines.